The Analog Devices LTC3219EUD#PBF is a switched-capacitor charge-pump LED driver that regulates nine independent outputs at up to 28 mA each, with brightness controlled over an I2C interface. It runs from a 2.9 V to 5.5 V supply rail and switches at 850 kHz, which keeps external flying and reservoir capacitors small enough for space-constrained portable designs. The 20-QFN (3x3 mm) package with exposed pad helps pull heat into the board plane.
It is not AEC-Q100 qualified, so it does not belong in an automotive ECU or under-hood module without a separate qualification review. For non-automotive applications that stay inside the industrial temperature window, the part is a straightforward fit.